Allah the Most deserving of Glorification, created concepts, such as Mercy, along with its implication, and examples of its existance. Acts of Mercy can be viewed through reflected upon viewing almost any scene of nature, children, and even people who are poverty struck. If we realize and truly believe that everything good comes from Allah we still will never be able to encompass the mass amount of Mercy He has produced for all of humanity. It's beyond intense. Subhan'Allah. He is Ar-Rahman. The Most Merciful. Allah is Al-Kareem. The Most Generous. But us idiotic creatures are those who complain regardless and we get so terribly impatient that we ignore the Mercy He that never stops granting!! Not just to Muslims, but non-Muslims and everything Allah has Designed & Created is blessed with His Mercy. Check out this hadith below, and think..what side of the fence are we on? Where do we consider ourselves to be? Are we too confident, or are we at a loss of hope? Another thing to think about is that Allah has only revealed one small part of Mercy...which to the person who reflects is actually pretty endless!
One of the Companions of Prophet Muhammad (peace and blessings be upon him, and them) named Abu-Huraira reported that heard our Prophet Muhammad, Allah's Last Messenger (pbuh) saying:
"Verily Allah created Mercy. The day He created it, He made it into one hundred parts. He withheld with Him ninety-nine parts, and sent its one part to all His creatures. Had the non-believer known of all the Mercy which is in the Hands of Allah, he would not lose hope of entering Paradise, and had the believer known of all the punishment which is present with Allah, he would not consider himself safe from the
(Peace and Blessings Be Upon Him)
(~related by Imam Bukhari)